Integrated touch control display panel and touch display device comprising conductive layer in non-display region

ABSTRACT

The present disclosure provides an integrated touch control display panel, including a first substrate, a plurality of data lines supplying display signals to display pixels, a plurality of touch control signal lines carrying touch control signals for touch control electrodes, a plurality of first lead lines for the data lines configured outside a display region, a plurality of second lead lines for the touch control signal lines configured outside the display region, and a conductive layer configured adjacent to the second lead lines. In a direction perpendicular to the first substrate, the first lead lines overlap with the second lead lines in an overlapping region. The second lead lines are configured on the side of the first lead lines facing away from the first substrate. The conductive layer is insulated from the first lead lines, and is electrically connected to the second lead lines.

CROSS-REFERENCES TO RELATED APPLICATIONS

This application claims the priority of Chinese Patent Application No.CN201510895886.5, filed on Dec. 7, 2015, the entire contents of whichare incorporated herein by reference.

FIELD OF THE DISCLOSURE

The present disclosure generally relates to the touch controltechnologies and, more particularly, relates to an integrated touchcontrol display panel and a touch display device.

BACKGROUND

With the advancement of modern electronic technologies, the displaypanel of display device may incorporate additional structures to supportmore functions. For example, touch control structure may be incorporatedto support touch control function to provide users with applicationconvenience.

Currently, to reduce the thickness of display panel and support touchcontrol function at the same time, touch control structure is oftenintegrated into display panel. When the capacitive touch controlstructure is used, the touch control electrodes of the capacitive touchcontrol structure may be directly formed on the same substrate as thedisplay structure. However, such configuration may cause certain issues.The peripheral region that surrounds the display region on the substratemay be configured with circuits and wirings for the display structure.In addition, the driver circuits and wirings for the touch controlstructure may also be configured in the same peripheral region. Thus,the circuit and wiring configuration in the peripheral region may becomea challenge and may jeopardize display product reliability.

The disclosed integrated touch control display panel and touch displaydevice are directed to solve one or more problems in the art.

BRIEF SUMMARY OF THE DISCLOSURE

Directed to solve one or more problems set forth above and otherproblems in the art, the present disclosure provides an integrated touchcontrol display panel and a touch display device.

One aspect of the present disclosure includes an integrated touchcontrol display panel. The integrated touch control display panelincludes a first substrate, a plurality of data lines configured on thefirst substrate supplying display signals to display pixels, a pluralityof touch control signal lines configured on the first substrate carryingtouch control signals for touch control electrodes, a plurality of firstlead lines for the data lines configured outside a display region on thefirst substrate, a plurality of second lead lines for the touch controlsignal lines configured outside the display region on the firstsubstrate, and a conductive layer configured adjacent to the second leadlines. In a direction perpendicular to the first substrate, the firstlead lines overlap with the second lead lines in an overlapping region.The second lead lines are configured on the side of the first lead linesfacing away from the first substrate. The conductive layer is insulatedfrom the first lead lines, and is electrically connected to the secondlead lines.

Another aspect of the present disclosure includes a touch displaydevice. The touch display device includes the disclosed integrated touchcontrol display panel.

Other aspects of the present disclosure can be understood by thoseskilled in the art in light of the description, the claims, and thedrawings of the present disclosure.

BRIEF DESCRIPTION OF THE DRAWINGS

The following drawings are merely examples for illustrative purposesaccording to various disclosed embodiments and are not intended to limitthe scope of the present disclosure.

FIG. 1 illustrates a schematic view of an exemplary touch display deviceaccording to the disclosed embodiments;

FIG. 2 illustrates a top view of an exemplary integrated touch controldisplay panel according to the disclosed embodiments;

FIG. 3 illustrates a close-up view of a region 300 in FIG. 2;

FIG. 4 illustrates a cross-sectional view along the AB line in FIG. 3;

FIG. 5 illustrates a close-up view of another region 300 in FIG. 2;

FIG. 6 illustrates another cross-sectional view along the AB line inFIG. 3;

FIG. 7 illustrates a schematic view of an exemplary mutual capacitancetouch control structure according to the disclosed embodiments;

FIG. 8 illustrates a cross-sectional view along the CD line in FIG. 7;

FIG. 9 illustrates another cross-sectional view along the CD line inFIG. 7;

FIG. 10 illustrates another cross-sectional view along the CD line inFIG. 7;

FIG. 11 illustrates a top view of an exemplary self capacitanceintegrated touch control display panel according to the disclosedembodiments;

FIG. 12 illustrates a schematic view of a display region of an exemplaryintegrated touch control display panel according to the disclosedembodiments;

FIG. 13 illustrates a cross-sectional view along the EF line in FIG. 12;and

FIG. 14 illustrates a schematic view of a first lead line region of anexemplary integrated touch control display panel according to thedisclosed embodiments.

DETAILED DESCRIPTION

Reference will now be made in detail to exemplary embodiments of thedisclosure, which are illustrated in the accompanying drawings. Whereverpossible, the same reference numbers will be used throughout thedrawings to refer to the same or like parts. It should be understoodthat the exemplary embodiments described herein are only intended toillustrate and explain the present invention and not to limit thepresent invention.

FIG. 1 illustrates a schematic view of an exemplary touch display deviceaccording to the present disclosure. Referring to FIG. 1, the touchdisplay device 10 may include an integrated touch control display panel100 and other components to support the operation of the integratedtouch control display panel 100. The touch display device may be a smartphone, a desktop computer, a laptop computer, and an electronic photoalbum, etc. The integrated touch control display panel 100 may includethe touch control structure and display structure configured on a samesubstrate to support both image display and touch control functions.

Such integration may reduce the number of substrates and the thicknessof the integrated touch control display panel. As a result, theintegrated touch control display panel may not only have the convenienttouch control function, but also have the advantages of compactdimension and light weight. On the other hand, the integration of thetouch control structure and the display structure on the same substratemay bring other issues and obstacles, such as wiring damages inperipheral areas. For the touch display device according to the presentdisclosure, improvements have been made to the integrated touch controlpanel 100 to increase the reliability.

FIG. 2 illustrates a top view of an exemplary integrated touch controldisplay panel according to the present disclosure. Referring to FIG. 2,the integrated touch control display panel 100 may include a substrate200, a plurality of stripe-shaped touch control electrodes TPE, aplurality of display pixels PL, a plurality of data lines DL, and aplurality of touch control signal lines TPL, all of which may beconfigured on the substrate 200. The plurality of the data lines DL maysupply display signals to display pixels PL. The plurality of the touchcontrol signal lines TPL may carry touch control signals of thestripe-shaped touch control electrodes TPE.

Outside the display region AA on the substrate 200, a plurality of firstlead lines C1 may be configured to connect the data lines DL to anintegrated circuit (IC), and a plurality of second lead lines C2 may beconfigured to connect the touch control signal lines TPL to the IC. In adirection perpendicular to the substrate 200, the first lead lines C1and the second lead lines C2 may overlap with one another as highlightedin a region 400 in FIG. 2. The region 400 shown in FIG. 2 may also becalled the overlapping region.

The data lines DL may be connected to the IC through the first leadlines C1. The IC may supply display signals to each display pixel PLthrough the data lines DL. Similarly, the touch control signal lines TPLmay be connected to the IC through the second lead lines C2. The IC maysupply touch control driving signals to each touch control electrode TPEthrough the touch control signal lines TPL. The touch control detectingsignals collected by the touch control electrodes TPE may be sent to theIC for processing through the touch control signal lines TPL. Both thetouch control driving signals and the touch control detecting signalsmay be called the touch control signals. The touch control signal linesTPL may be configured to carry the touch control signals.

Generally, the connection pins for the touch control signals may belocated on one or both ends of the IC. Accordingly, the connection pinsfor the display signals may be located on the other end or in the middleof the IC. When the touch control signal lines TPL and the data lines DLare connected to the IC, the lead lines of the touch control signallines TPL and the data lines DL may intersect with one another. Thus, inthe direction perpendicular to the substrate 200, the first lead linesC1 and the second lead lines C2 may overlap in the overlapping region400.

FIG. 3 illustrates a close-up view of a region 300 in FIG. 2. Referringto FIG. 3, the region 300 may be a part of the overlapping region 400where the first lead lines C1 and the second lead lines C2 overlap inthe direction perpendicular to the substrate 200. In the directionperpendicular to the substrate 200, the second lead lines C2 may belocated on the side of the first lead lines C1 facing away from thesubstrate 200. A conductive layer 210 may be configured on the side ofthe first lead lines C1 facing away from the substrate 200. Theconductive layer 210 may be insulated from the first lead lines C1. Theconductive layer 210 may be electrically connected to the second leadlines C2.

FIG. 4 illustrates a cross-sectional view along the AB line in FIG. 3.Referring to FIG. 4, in the direction perpendicular to the substrate200, the first lead lines C1 and the second lead lines C2 may overlap inthe overlapping region. The second lead lines C2 may be located on theside of the first lead lines C1 facing away from the substrate 200. Fromthe perspective shown in FIG. 4, in the direction perpendicular to thesubstrate 200, the first lead lines C1 may be configured on thesubstrate 200. The second lead lines C2 may be configured on the firstlead lines C1. A conductive layer 210 may also be configured on the sideof the first lead lines C1 facing away from the substrate 200. Theconductive layer 210 may be insulated from the first lead lines C1 andmay be electrically connected to the second lead lines C2.

As shown in FIG. 4, the conductive layer 210 may be configured betweenthe first lead lines C1 and second lead lines C2. In addition, a firstinsulating layer 220 may be configured between the conductive layer 210and the first lead lines C1 to insulate the conductive layer 210 fromthe first lead lines C1. The second lead lines C2 may be configureddirectly on the conductive layer 210 so that the conductive layer 210and the second lead lines C2 may be electrically connected.

In certain other embodiments, the conductive layer 210 may be configuredon the second lead lines C2. Further, a second insulating layer (notshown) may be configured between the conductive layer and the secondlead lines C2. In this case, the conductive layer 210 may beelectrically connected to the second lead lines C2 through through-holesin the second insulating layer.

Accordingly, in the integrated touch control display panel according tothe present disclosure, the display structure and the touch controlstructure may be configured on a same substrate. As a result, the leadlines of the data lines and the lead lines of the touch control signallines may overlap with one another in the direction perpendicular to thesubstrate outside the display region. The lead lines of the data linesconfigured on the substrate may make the substrate surface uneven tocause incidental disconnections when the lead lines of the touch controlsignal lines overlap with the lead lines of the data lines. When thelead lines of the touch control signal lines are electrically connectedto the conductive layer in the overlapping region, even if the leadlines of the touch control signal lines disconnect, the conductive layermay provide connection bridges across the disconnections to maintain theconductivity of the lead lines of the touch control signal lines.

Further, in the case that the conductive layer is configured between thefirst lead lines and the second lead lines, the conductive layer maysmoothen the uneven substrate surface to reduce the disconnectionprobability of the lead lines of the touch control signal lines to acertain degree. Thus, the conductive layer configured in the overlappingregion may improve the reliability of the integrated touch controldisplay panel.

Further, referring to FIG. 2, a plurality of slits may be configuredbetween adjacent stripe-shaped touch control electrodes TPE tocompletely separate the stripe-shaped touch control electrodes TPE. As aresult, each stripe-shaped touch control electrode TPE may be insulatedfrom one another. At the same time, each stripe-shaped touch controlelectrode TPE may be connected to a touch control signal line TPL tocarry the touch control signals.

In one embodiment, each mutually insulated stripe-shaped touch controlelectrode TPE may independently connect to one touch control signal lineTPL to transfer the touch control signals. The touch control signallines TPL may be insulated from one another. Thus, in this case, theconductive layer may include a plurality of conductive lines that areone-to-one mapping with the individual second lead line C2. The secondlead lines C2 may be configured directly on the conductive layer. Theconductive lines may have a width greater than the width of the secondlead lines C2.

FIG. 5 illustrates a close-up view of another region 300 in FIG. 2.Referring to FIG. 5, the conductive layer may include a conductive line2101 and a conductive line 2102. The conductive line 2101 and theconductive line 2102 may correspond to an individual second lead lineC2, and may have a width greater than the width of the second lead linesC2. As shown in FIG. 4, the conductive line 2101 and the conductive line2102 may be configured directly on the corresponding second lead linesC2.

As shown in FIG. 5, each second lead line C2 may operate independently.Subsequently, each stripe-shaped touch control electrode may operateindependently. At the same time, the wider width of the conductive linesmay reduce the disconnection probability of the conductive lines.Further, the direct contact between the conductive lines and the secondlead lines may maximize the contact area between the conductive linesand the second lead lines for the desired electrical connectivity. Thus,the reliability may be further improved.

In another embodiment, referring to FIG. 3, the conductive layer mayprovide another function. Under certain circumstance, a plurality ofmutually insulated stripe-shaped touch control electrodes may carryidentical touch control signals synchronously. In other words, theplurality of the mutually insulated stripe-shaped touch controlelectrodes may be combined and used as one touch control electrode. Thesecond lead lines that correspond to the plurality of the touch controllines carrying the touch control signals for the combined touch controlelectrode may be electrically connected to one another. Such electricalconnectivity may be achieved by connecting the second lead lines throughthe conductive layer. Alternatively, the electrical connectivity betweenthe second lead lines provided by the conductive layer may be asecondary connectivity for the electrical connectivity between thestripe-shaped touch control electrodes of the combined touch controlelectrode. The electrical connectivity between the stripe-shaped touchcontrol electrodes of the combined touch control electrode may haveother primary connectivity.

In another embodiment, referring to FIG. 3, the conductive layer mayprovide another function. Under certain circumstances, one stripe-shapedtouch control electrode may be connected to a plurality of touch controlsignal lines. The second lead lines corresponding to the plurality ofthe touch control signal lines may be electrically connected to oneanother through the conductive layer.

Connecting one stripe-shaped touch control electrode to the plurality ofthe touch control signal lines may substantially reduce the transmissionresistance and transmission delay of the touch control signals. In thiscase, the plurality of the touch control signal lines maybe electricallyconnected to one another. Such electrical connectivity may be achievedby connecting the second lead lines corresponding to the touch controlsignal lines through the conductive layer. Alternatively, the electricalconnectivity between the second lead lines provided by the conductivelayer may be a secondary connectivity for the electrical connectivitybetween the plurality of the touch control signal lines. The electricalconnectivity between the stripe-shaped touch control electrodes of thecombined touch control electrode may have other primary connectivity.

As shown in FIG. 4, the conductive layer 210 may be configured directlyon the second lead lines C2 to maximize the contact area between theconductive lines and the second lead lines C2 to achieve the desiredelectrical connectivity. To further improve the reliability, in certainembodiments, the conductive layer 210 may be configured between thefirst lead lines C1 and the second lead lines C2. In certain otherembodiments, different configuration may be used.

FIG. 6 illustrates another cross-sectional view along the AB line inFIG. 3. Referring to FIG. 6, the conductive layer 210 may be configuredon the side of the second lead lines C2 facing away from the substrate200. From the perspective shown in FIG. 6, the conductive layer 210 maybe configured above the second lead lines C2.

The integrated touch control display panel according to the presentdisclosure may be a liquid crystal display panel. Referring to FIG. 2,the integrated touch control display panel 100 may include a pluralityof display pixels PL. Each display pixel PL may include a pixelelectrode, a common electrode, and a thin film transistor. The pixelelectrode may be electrically connected to a drain electrode of the thinfilm transistor. A source electrode of the thin film transistor may beelectrically connected to a data line DL. A gate electrode of the thinfilm transistor may be electrically connected to a scanning line SL.

The scanning line SL may supply scanning signals produced by a scanningdriver circuit 500 to control the on/off state of the thin filmtransistor. Subsequently, the scanning line SL may control whether thedisplay signal carried by the data line DL is transmitted to the displaypixel. The pixel electrode may receive the display signal. The commonelectrode may receive the common signal. The pixel electrode and thecommon electrode in the display pixel may form an electric field tocontrol the rotation of the liquid crystals to display images.

Generally, the common electrode in each display pixel may receive a samecommon signal. Thus, the common electrodes in the display pixels of theentire display panel may be electrically connected together. Theintegrated touch control display panel according to the presentdisclosure may include a common electrode layer. The common electrodelayer may include a plurality of sub-electrodes that are insulated fromone another. The sub-electrodes may be obtained by dividing the commonelectrode layer. One sub-electrode may operate as a common electrode fora plurality of display pixels. At the same time, the sub-electrodes mayoperate as the touch control electrodes.

When the sub-electrodes operate as the touch control electrodes, theintegrated touch control display panel may operate in a display phase ora touch control phase. The display phase and the touch control phase maybe time multiplexed. Specifically, the default operation phase for theintegrated touch control display panel may be the display phase. Duringthe display phase, the sub-electrodes may be supplied with the commonsignals or may be connected to ground. During the touch control phase,displaying may be suspended, and the sub-electrodes may carry the touchcontrol signals through the touch control signal lines.

Because the sub-electrodes may be multiplexed as the touch controlelectrodes, it may simplify the fabrication process of the integratedtouch control display panel, and may save the manufacturing time andmanufacturing cost. Further, when the touch control electrodes areconfigured separately in the integrated touch control display panel,additional insulating layers may be needed to prevent the touch controlelectrodes from being interfered by other structures. Thus, thesub-electrodes' operating as the touch control electrodes may simplifythe layering structure of the integrated touch control display panel andmay reduce the thickness of the integrated touch control display panel.

The integrated touch control display panel according to the presentdisclosure may have a mutual capacitance touch control structure or aself capacitance touch control structure. The sub-electrodes may havevarious configurations accordingly. Referring to FIG. 2, in a firstconfiguration, the common electrode layer may include a plurality offirst stripe-shaped sub-electrodes TPE. The first stripe-shapedsub-electrodes TPE may operate as the touch control electrodes TPE.Thus, the first stripe-shaped sub-electrodes TPE and the touch controlelectrodes TPE may be the same. The first stripe-shaped sub-electrodesTPE may extend in a same direction as the data lines DL extend. Theplurality of the first stripe-shaped sub-electrodes TPE may besequentially arranged in a direction intersecting the extensiondirection of the data lines DL.

Specifically, the first stripe-shaped sub-electrodes TPE may extend in adirection Y. The data lines DL may also extend in the direction Y. Theplurality of the first stripe-shaped sub-electrodes TPE may besequentially arranged in a direction X. The direction X may intersectwith the direction Y. As shown in FIG. 2, one first stripe-shapedsub-electrode TPE may be configured to support a plurality of displaypixels PL. Consequently, one such first stripe-shaped sub-electrode TPEmay be used as a common electrode for the plurality of display pixelsPL.

In the first configuration, the first stripe-shaped sub-electrodes TPEmay operate as either the touch control driving electrodes or the touchcontrol detecting electrodes in the mutual capacitance touch controlstructure. In the mutual capacitance touch control structure, the touchcontrol driving electrodes may be supplied with the pulsed touch controldriving signals. Capacitors may be formed between the touch controldriving electrode and the touch control detecting electrodes. When atouch control event occurs on the integrated touch control displaypanel, the coupling between the touch control driving electrode and thetouch control detecting electrode near the touch position may beaffected such that the capacitance between the touch control drivingelectrode and the touch control detecting electrode near the touchposition may be changed.

The touch position may be detected as described in the following. Thetouch control driving signals may be sequentially supplied to the touchcontrol driving electrodes. At the same time, the touch controldetecting electrodes may collect and transmit the touch controldetecting signals. Thus, the capacitance values at the intersections ofthe touch control driving electrodes and the touch control detectingelectrodes may be obtained to form the two-dimensional capacitancedistribution data for the entire integrated touch control display panel.Based on the two-directional capacitance distribution data for theintegrated touch control display panel, the coordinates of the touchposition may be calculated.

FIG. 7 illustrates a schematic view of an exemplary mutual capacitancetouch control structure according to the present disclosure. Referringto FIG. 7, the first stripe-shaped sub-electrodes TPE may operate as thetouch control driving electrodes. During the touch control phase, thetouch control signal lines may supply the touch control driving signalsto the first stripe-shaped sub-electrodes TPE. Accordingly, theintegrated touch control display panel may also include a plurality ofsecond stripe-shaped sub-electrodes TPE2. The plurality of the secondstripe-shaped sub-electrodes TPE2 may be sequentially arranged inparallel. The second stripe-shaped sub-electrodes TPE2 may be used tocarry the touch control detecting signals. That is, the secondstripe-shaped sub-electrodes TPE2 may operate as the touch controldetecting electrodes.

The second stripe-shaped sub-electrodes TPE2 may extend in a directionthat intersects with the extension direction of the first stripe-shapedsub-electrodes TPE. Specifically, as shown in FIG. 7, the firststripe-shaped sub-electrodes TPE may extend in the direction Y. Thesecond stripe-shaped sub-electrodes TPE2 may extend in the direction X.The plurality of the second stripe-shaped sub-electrodes TPE2 may besequentially arranged in parallel in the direction Y. The direction Xmay intersect with the direction Y. The direction X and the direction Ymay be perpendicular to each other, or the direction X and the directionY may not be perpendicular to each other as long as the direction Xintersects with the direction Y.

Further, other configurations of the first stripe-shaped sub-electrodesTPE and the second stripe-shaped sub-electrodes TPE2 may be used. FIG. 8illustrates a cross-sectional view along the CD line in FIG. 7.Referring to FIG. 8, the first stripe-shaped sub-electrodes TPE and thesecond stripe-shaped sub-electrodes TPE2 may be configured on thesubstrate 200. The first stripe-shaped sub-electrodes TPE may beconfigured between the substrate 200 and the second stripe-shapedsub-electrodes TPE2. An insulating layer may be configured between thefirst stripe-shaped sub-electrodes TPE and the second stripe-shapedsub-electrodes TPE2 to insulate between the first stripe-shapedsub-electrodes TPE and the second stripe-shaped sub-electrodes TPE2.

FIG. 9 illustrates another cross-sectional view along the CD line inFIG. 7. Referring to FIG. 9, the first stripe-shaped sub-electrodes TPEmay be configured on a first substrate 200. The integrated touch controldisplay panel may also include a second substrate 900 configured facingtoward the first substrate 200. The second stripe-shaped sub-electrodesTPE2 may be configured on the second substrate 900. The firststripe-shaped sub-electrodes TPE may be configured on the side of thefirst substrate 200 facing toward the second substrate 900. The secondstripe-shaped sub-electrodes TPE2 may be configured on the side of thesecond substrate 900 facing toward the first substrate 200. A liquidcrystal layer may be configured between the first substrate 200 and thesecond substrate 900.

FIG. 10 illustrates another cross-sectional view along the CD line inFIG. 7. Referring to FIG. 10, the first stripe-shaped sub-electrodes TPEmay be configured on a first substrate 200. The integrated touch controldisplay panel may also include a second substrate 900 configured facingtoward the first substrate 200. The second stripe-shaped sub-electrodesTPE2 may be configured on the second substrate 900. The firststripe-shaped sub-electrodes TPE may be configured on the side of thefirst substrate 200 facing toward the second substrate 900. Differentfrom the configuration shown in FIG. 9, the second stripe-shapedsub-electrodes TPE2 may be configured on the side of the secondsubstrate 900 facing away from the first substrate 200. A liquid crystallayer may be configured between the first substrate 200 and the secondsubstrate 900.

In certain embodiments, the second stripe-shaped sub-electrodes operateas the touch control detecting electrodes may be configured on the sideof the first stripe-shaped sub-electrodes operated as the touch controldriving electrodes facing away from the substrate. Touch operations bythe user may often be on the side of the first stripe-shapedsub-electrodes facing away from a first substrate. Alternatively, when asecond substrate is configured facing toward the first substrate, touchoperations by the user may often be on the side of the second substratefacing away from the first substrate.

Therefore, the second stripe-shaped sub-electrodes operated as the touchcontrol detecting electrodes may be configured on the side of the firststripe-shaped sub-electrodes facing away from the first substrate toplace the touch control detecting electrodes closer to the touch controloperation surface, where the touch control operations may affect thetouch control detecting electrodes more substantially. As a result, thetouch control detecting electrodes may collect the touch control signalsmore accurately, and the touch control operations may be performed moreprecisely.

Preferably, the second stripe-shaped sub-electrodes operated as thetouch control detecting electrodes may be configured on the side of thesecond substrate facing away from the first substrate to allow moreprecise touch control operations.

In a second configuration, the stripe-shaped sub-electrodes may operateas the self capacitance touch control electrodes. FIG. 11 illustrates atop view of an exemplary self capacitance integrated touch controldisplay panel according to the present disclosure. Referring to FIG. 11,the integrated touch control display panel may include a commonelectrode layer. The common electrode layer may include a plurality ofsquare-shaped sub-electrodes TPE. The plurality of the square-shapedsub-electrodes TPE may be arranged in an array. The square-shapedsub-electrodes TPE may operate as the self capacitance touch controlelectrodes.

In the self capacitance touch control structure, the touch controlelectrodes may be supplied with the touch control driving signals. Atthe same time, the touch control electrodes may respond with the touchcontrol detecting signals. When a touch control event occurs on theintegrated touch control display panel, the capacitance value betweenthe touch control electrode and ground near the touch position maychange, and the touch control detecting signal transmitted by theaffected touch control electrode may change accordingly. Each touchcontrol electrode may represent an individual point of coordinates. Thetouch control detecting signals from all available touch controlelectrodes may be processed to determine the touch position.

As shown in FIG. 11, each touch control electrode TPE may beelectrically connected to at least one touch control signal line TPL toensure that each touch control electrode TPE may independently transmit,through the touch control signal line(s) TPL, the touch control signalswhich include the touch control driving signal and the touch controldetecting signal.

In the integrated touch control display panel according to the presentdisclosure, the conductive layer may be made of metal or transparentconductive material. The fabrication process of the integrated touchcontrol display panel may include forming a plurality of metal layersand a plurality of transparent conductive layers. Thus, the conductivelayer may be formed at the same time with any metal layer or anytransparent conductive layer.

Specifically, when the common electrode layer operates as the touchcontrol electrodes, the common electrode layer may need to connect tothe touch control signal lines. Consequently, the common electrode layerand the touch control signal line layer may be designed in such way thatit may be more easily to connect the common electrode layer with thetouch control signal line layer. For example, the second lead lines mayoften be formed coplanar with the touch control signal lines. Theconductive layer may be formed coplanar with the common electrode layerto make the second lead lines more easily connect to the conductivelayer.

FIG. 12 illustrates a schematic view of a display region of an exemplaryintegrated touch control display panel according to the presentdisclosure. Referring to FIG. 12, a display region of the integratedtouch control display panel may include a plurality of scanning linesSL, data lines DL, display pixels PL, and thin film transistors TFT. Thesource electrode SOURCE of the thin film transistor TFT may electricallyconnected to a data line DL. The drain electrode DRAIN of the thin filmtransistor TFT may be electrically connected to a display pixel PL. Thegate electrode GATE of the thin film transistor TFT may be electricallyconnected to a scanning line SL.

The scanning signals produced by the scanning driver circuit may besupplied to the scanning lines SL to control the on/off state of thethin film transistors. As such, the scanning lines SL may controlwhether the display signals carried by the data lines DL may enter thedisplay pixels PL.

The source electrode SOURCE and the drain electrodes DRAIN of the thinfilm transistors TFT and the data lines DL may be formed at the sametime by etching the source/drain electrode metal layer. The gateelectrode GATE of the thin film transistors and the scanning lines maybe formed at the same time by etching the gate electrode metal layer.Because the data lines DL and the scanning lines SL may intersect withone another on the substrate and may be insulated from one another, thesource/drain electrode metal layer and the gate electrode metal layermay not be coplanar.

FIG. 13 illustrates a cross-sectional view along the EF line in FIG. 12.Referring to FIG. 13, the gate electrode GATE may be formed on thesubstrate 200. The source electrode SOURCE and the drain electrode DRAINmay be configured on the gate electrode GATE. An insulating layer 250may be formed between the source/drain electrodes SOURCE and DRAIN andthe gate electrode GATE.

Generally, in the integrated touch control display panel, the number ofdata lines and the number of display pixels in a row may be equal. Forthe integrated touch control display panel with high resolution, thenumber of data lines may be large. Each data line may be connected to atleast one first lead line. Therefore, the number of first lead lines maybe large as well. The distances between the first lead lines may besmall. The integrated touch control display panel according to thepresent disclosure may use two metal layer to from the first lead lines.

FIG. 14 illustrates a schematic view of a first lead line region of anexemplary integrated touch control display panel according to thepresent disclosure. Referring to FIG. 14, the first lead lines mayinclude a plurality of gate electrode layer lead lines C11 and aplurality of source/drain electrode layer lead lines C12. The gateelectrode layer lead lines C11 may be formed at the same time with thegate electrodes by etching the gate electrode metal layer. Thesource/drain electrode layer lead lines C12 may be formed at the sametime with the source/drain electrodes by etching the source/drainelectrode metal layer. The gate electrode layer lead lines C11 and thesource/drain electrode layer lead lines C12 may be insulated by aninsulating layer 250. The gate electrode layer lead lines C11 and thesource/drain electrode layer lead lines C12 may be arranged sequentiallyand alternately.

Due to the fabrication process constraints, two adjacent lead lines thatare formed in a same step of the fabrication process may require aminimum separation distance in between, which may prevent high densityconfiguration of the lead lines, and may enlarge the lead line region.The first lead lines may be divided into the gate electrode layer leadlines and the source/drain electrode layer lead lines. The gateelectrode layer lead lines and the source/drain electrode lead lines maybe arranged sequentially and alternately.

Adjacent gate electrode layer lead line and source/drain electrode layerlead line may be very close to each other or may overlap with each otherin a direction perpendicular to the substrate. Thus, the first leadlines may be densely configured. Further, the gate electrode layer leadlines and the source/drain electrode layer lead lines may be formed inthe metal layers excluding the gate electrode metal layer and thesource/drain electrode metal layer. As long as the gate electrode layerlead lines and the source/drain electrode layer lead lines are notformed coplanar with each other, the first lead lines maybe denselyconfigured.

Various embodiments have been described to illustrate the operationprinciples and exemplary implementations. The embodiments disclosedherein are exemplary only. Other applications, advantages, alternations,modifications, or equivalents to the disclosed embodiments are obviousto those skilled in the art and are intended to be encompassed withinthe scope of the present disclosure.

1-15. (canceled)
 16. An integrated touch control display panel,comprising: a first substrate; a plurality of data lines configured onthe first substrate, supplying display signals to display pixels; aplurality of touch control signal lines configured on the firstsubstrate, carrying touch control signals for touch control electrodes;a plurality of first lead lines for the data lines configured outside adisplay region on the first substrate; a plurality of second lead linesfor the touch control signal lines configured outside the display regionon the first substrate; and a conductive layer configured adjacent tothe second lead lines, wherein: in a direction perpendicular to thefirst substrate, the first lead lines overlap with the second lead linesin an overlapping region, the second lead lines are configured on a sideof the first lead lines facing away from the first substrate, and theconductive layer is insulated from the first lead lines and iselectrically connected to the second lead lines, wherein the integratedtouch control display panel satisfies one of the following: theconductive layer includes a plurality of conductive lines which areone-to-one mapping with the plurality of second lead lines, and aconductive line has a width wider than a mapped second lead line; andthe second lead lines, which correspond to the touch control linescarrying the touch control signals for one touch control electrode groupor one touch control electrode, are electrically connected to oneanother in the conductive layer.
 17. The integrated touch controldisplay panel of claim 16, further including a common electrode layer,wherein: the common electrode layer includes a plurality ofsub-electrodes insulated from one another; during a display phase, thesub-electrodes operate as common electrodes; and during a touch controlphase, the sub-electrodes operate as touch control electrodes.
 18. Theintegrated touch control display panel of claim 17, wherein: the commonelectrode layer includes a plurality of first stripe-shapedsub-electrodes; the first stripe-shaped sub-electrodes extend in a sameextension direction as the data lines; and the first stripe-shapedsub-electrodes are sequentially arranged in a direction intersectingwith the extension direction of the data lines.
 19. The integrated touchcontrol display panel of claim 18, wherein: the touch control signallines supply touch control driving signals to the first stripe-shapedsub-electrodes.
 20. The integrated touch control display panel of claim19, further including: a second substrate configured facing toward thefirst substrate; and a plurality of second stripe-shaped sub-electrodesconfigured on the second substrate, wherein: the second stripe-shapedsub-electrodes carry touch control detecting signals; the secondstripe-shaped sub-electrodes are sequentially arranged in parallel; andthe second stripe-shaped sub-electrodes extend in a directionintersecting the extension direction of the first stripe-shapedsub-electrodes.
 21. The integrated touch control display panel of claim17, wherein: the common electrode layer includes a plurality ofsquare-shaped sub-electrodes; and the square-shaped sub-electrodes arearranged in an array.
 22. The integrated touch control display panel ofclaim 1, wherein: during the touch control phase, the square-shapedsub-electrodes operate as self capacitance touch control electrodes. 23.The integrated touch control display panel of claim 17, wherein: theconductive layer is formed coplanar with the common electrode layer. 24.The integrated touch control display panel of claim 16, wherein: thesecond lead line directly overlaps with the mapped conductive line. 25.The integrated touch control display panel of claim 16, wherein: a sametouch control electrode is electrically connected to a plurality of thetouch control signal lines; and the touch control signal lines areelectrically connected to one another through corresponding second leadlines that are electrically connected to one another in the conductivelayer.
 26. The integrated touch control display panel of claim 16,wherein: the conductive layer is configured directly on a side of thesecond lead lines facing toward the first substrate.
 27. The integratedtouch control display panel of claim 16, wherein: the conductive layeris configured directly on a side of the second lead lines facing awayfrom the first substrate.
 28. The integrated touch control display panelof claim 16, wherein: the first lead lines include gate electrode layerlead lines and source/drain electrode layer lead lines; and the gateelectrode layer lead lines are not coplanar with the source/drainelectrode layer lead lines.
 29. The integrated touch control displaypanel of claim 28, further including: a plurality of scanning lines; anda plurality of thin film transistors configured on the first substrate,wherein: the thin film transistors are used to control whether thedisplay signals enter the display pixels; the thin film transistorincludes a gate electrode, a source electrode, and a drain electrode;the gate electrode is connected to a scanning line, the source electrodeis connected to a data line, and the drain electrode is connected to adisplay pixel; the gate electrode layer lead lines are formed coplanarwith the gate electrodes; and the source/drain electrode layer leadlines are formed coplanar with the source electrodes and the drainelectrodes.
 30. The integrated touch control display panel of claim 16,wherein: the touch control electrode group includes a number of mutuallyinsulated touch control electrodes that carry identical touch controlsignals synchronously.
 31. A touch display device including anintegrated touch control display panel, the integrated touch controldisplay panel comprises: a first substrate; a plurality of data linesconfigured on the first substrate; supplying display signals to displaypixels; a plurality of touch control signal lines configured on thefirst substrate, carrying touch control signals for touch controlelectrodes; a plurality of first lead lines for the data linesconfigured outside a display region on the first substrate; a pluralityof second lead lines for the touch control signal lines configuredoutside the display region on the first substrate; and a conductivelayer configured adjacent to the second lead lines, wherein: in adirection perpendicular to the first substrate, the first lead linesoverlap with the second lead lines in an overlapping region, the secondlead lines are configured on a side of the first lead lines facing awayfrom the first substrate, and the conductive layer is insulated from thefirst lead lines and is electrically connected to the second lead lines,wherein the integrated touch control display panel satisfies one of thefollowing: the conductive layer includes a plurality of conductive lineswhich are one-to-one mapping with the plurality of second lead lines,and a mapped conductive line has a width wider than a second lead line;and the second lead lines, which correspond to the touch control linescarrying the touch control signals for one touch control electrode groupor one touch control electrode, are electrically connected to oneanother in the conductive layer.
 32. The touch display device of claim31, wherein: the touch control electrode group includes a number ofmutually insulated touch control electrodes that carry identical touchcontrol signals synchronously.
 33. The touch display device of claim 31,wherein: the second lead line directly overlaps with the mappedconductive line.